You wont get that reliably with stock internals. And I doubt you will get that on that budget. You may but you would be hard pressed
You are going to need a T41B or a T08 single turbo. the factory compression ratio is too high for big boost so you will need to do the pistons, cams, exhaust manifold, external waste gate, fuel pump, front mount of at least 600 x 300 x 100, 720cc injectors, ecu, and port the head. Not to mention the exhaust and pod filter.
I hate to be the bearer of bad news but the RB25DET just wont reach that on stock internals or with much of the stock bits at all, and the ecu is another restrictor.